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Syntax Definition cinf 7980
Description: Extend class notation to include infimum of class  A. Here  R is ordinarily a relation that strictly orders class  B. For example,  R could be 'less than' and  B could be the set of real numbers.
Hypotheses
Ref Expression
cA  class  A
cB  class  B
cR  class  R
Assertion
Ref Expression
cinf  class inf ( A ,  B ,  R
)

See definition df-inf 7982 for more information.

Colors of variables: wff setvar class
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